Comment # 1 on bug 983140 from Glenn Doig

# perl -V
Warning: failed to load Config_git.pl, something strange about this perl...
Summary of my perl5 (revision 5 version 18 subversion 1) configuration:
  undef undef
  Platform:
    osname=linux, osvers=3.4.6-2.10-xen, archname=x86_64-linux-thread-multi
    uname='linux build16 3.4.6-2.10-xen #1 smp thu jul 26 09:36:26 utc 2012
(641c197) x86_64 x86_64 x86_64 gnulinux '
    config_args='-ds -e -Dprefix=/usr -Dvendorprefix=/usr -Dinstallusrbinperl
-Dusethreads -Di_db -Di_dbm -Di_ndbm -Di_gdbm -Dd_dbm_open -Duseshrplib=true
-Doptimize=-fmessage-length=0 -grecord-gcc-switches -O2 -Wall
-D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables
-fasynchronous-unwind-tables -g -Wall -pipe -Accflags=-DPERL_USE_SAFE_PUTENV
-Dotherlibdirs=/usr/lib/perl5/site_perl
-Dinc_version_list=5.18.0/x86_64-linux-thread-multi 5.18.0'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DPERL_USE_SAFE_PUTENV
-fno-strict-aliasing -pipe -fstack-protector -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64',
    optimize='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall
-D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables
-fasynchronous-unwind-tables -g -Wall -pipe',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -DPERL_USE_SAFE_PUTENV
-fno-strict-aliasing -pipe -fstack-protector'
    ccversion='', gccversion='4.8.1 20130909 [gcc-4_8-branch revision 202388]',
gccosandvers=''
    intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t',
lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib64 -fstack-protector'
    libpth=/lib64 /usr/lib64 /usr/local/lib64
    libs=-lm -ldl -lcrypt -lpthread
    perllibs=-lm -ldl -lcrypt -lpthread
    libc=/lib64/libc-2.18.so, so=so, useshrplib=true, libperl=libperl.so
    gnulibc_version='2.18'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E
-Wl,-rpath,/usr/lib/perl5/5.18.1/x86_64-linux-thread-multi/CORE'
    cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib64
-fstack-protector'


Characteristics of this binary (from libperl): 
  Compile-time options: HAS_TIMES MULTIPLICITY PERLIO_LAYERS
                        PERL_DONT_CREATE_GVSV
                        PERL_HASH_FUNC_ONE_AT_A_TIME_HARD
                        PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP
                        PERL_PRESERVE_IVUV PERL_SAWAMPERSAND
                        PERL_USE_SAFE_PUTENV USE_64_BIT_ALL USE_64_BIT_INT
                        USE_ITHREADS USE_LARGE_FILES USE_LOCALE
                        USE_LOCALE_COLLATE USE_LOCALE_CTYPE
                        USE_LOCALE_NUMERIC USE_PERLIO USE_PERL_ATOF
                        USE_REENTRANT_API
  Built under linux
  Compiled at Sep 27 2013 18:30:33
  @INC:
    /usr/lib/perl5/site_perl/5.18.1/x86_64-linux-thread-multi
    /usr/lib/perl5/site_perl/5.18.1
    /usr/lib/perl5/vendor_perl/5.18.1/x86_64-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.18.1
    /usr/lib/perl5/5.18.1/x86_64-linux-thread-multi
    /usr/lib/perl5/5.18.1
    /usr/lib/perl5/site_perl/5.18.0/x86_64-linux-thread-multi
    /usr/lib/perl5/site_perl/5.18.0
    /usr/lib/perl5/vendor_perl/5.18.0/x86_64-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.18.0
    /usr/lib/perl5/site_perl
    .